I brewed up a batch Friday night, all seemed to go well. expected to see bubbler on the primary (plastic ale pale) going crazy the next morning, but nothing. I decided if there was still nothing this morning I would pitch more yeast. So I opened the bucket and found a huge head of foam on top of my beer. So obviously there is an air leak in my bucket. I transferred into my secondary (carboy), and all seems well. My question is what could all that exposure to the air have done to the final product?